3D Vision Blog

A normal user's look into the world of 3D Stereo Technologies

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AOC d2357Ph is a New Passive 3D Monitor with Thin Bezel

March 21st, 2012 · 2 Comments · General 3D News


AOC has introduced a new 23-inch passive 3D-capable monitor with that is only 10.6 mm deep and with a thin 5.8 mm frame – the AOC d2357Ph. The design definitely catches your attention, and thanks to the thin bezel you might want to consider using these monitors for multi-monitor setups in 2D or stereo 3D. AOC d2357Ph uses LED backlight and thus achieves the thin design, although it even has integrated speakers, supports HDMI 1.4 interface with frame packaging as well as row interleaved 3D and comes with a 2D to 3D conversion capabilities.



AOC d2357Ph 3D Monitor Specifications:

– Panel Size: 23 inch/58.5 cm, 16:9, Full HD, WLED LCD
– Response Time: 2ms in 2D mode (Grey to Grey), 5ms (typical)
– Maximum Brightness: 2500 cd/m²
– Maximum Contrast: 20,000,000:1 (dynamic), 1000:1 (typical)
– Viewing angle: 170º (H)/170º (V), @ C/R > 10
– Pixel pitch: 0.265 mm
– Signal Input: 2x HDMI 1.4, VGA (Analogue)
– Power consumption: On: < 36 W; Standby: < 0.6W - Product with stand: 533.3 x 399.3 x 120 mm - Product with stand: 4.87 kg

The new 3D monitor from AOC comes with 2 pairs of polarized 3D glasses, 1 normal and 1 clip on for people wearing prescription glasses. And although it is not mentioned, the monitor should be coming with the TriDef 3D software bundled for the stereo 3D support as AOC is an OEM partner of DDD and there is a special version of the TriDef 3D package intended for AOC 3D monitors. The AOC d2357Ph is scheduled to be launched in April 2012; the recommended retail price will be 239 Euro in Europe, not yet information about pricing and availability in North America. Considering the price of the previous 23-inch passive 3D monitor from AOC (the e2352Phz available for $299 USD), you can expect that the AOC d2357Ph should be available at a similar or a slightly higher price.

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More TV Makers Are Apparently Going for Passive 3D Technology

March 7th, 2012 · 18 Comments · Other S3D Tech


Lately there were a lot of news and speculations that more and more 3D HDTV manufacturers are going to be releasing passive 3D products, even top names like Sony and Panasonic that were solely focused on active 3D solutions are apparently going to be making passive 3D HDTVs. But is passive 3D technology better than active and what is the reason it is getting more and more interest from the companies making 3D HDTVs? Well, the major advantage is that products based on passive 3D technology are cheaper and easier to produce, and you can get dozens of passive 3D glasses at the price of a single pair of active 3D ones. Does that make passive 3D better – no, it does not, but for more price conscious customers these solutions are considered more attractive. Of course there is the fact that passive 3D glasses are easier to adjust and less people are having issues wearing them as opposed to active shutter glasses, but then again there are disadvantages in the passive 3D technology as well, one of the major ones being the reduced in two vertical resolution when in 2D mode.

LG Electronics is probably going to be the big winner of all this increase in interest in passive 3D technology as it is one of the largest manufacturers and suppliers supporting passive 3D technology, but the company is already looking beyond passive 3D – into autosterescopic 3D solutions. The other big Korean brand – Samsung is still one of the largest active 3D HDTV supporter and although they also had interest into passive 3D technology they have apparently abandoned what they were working on in terms of next generation of passive 3D technology. Up until a few months ago the company was in partnership with RealD in order to develop a passive 3D solution with true Full HD resolution in 3D mode as well, but apparently the work on that has been suspended until RealD finds another partner.

Now, setting aside the use of 3D HDTVs for watching 3D movies, if you consider the use of the larger screen TV sets for stereoscopic 3D gaming, the passive 3D technology is not at a significant disadvantage. The reason for that lies in the limitation of the HDMI 1.4(a) stereo specifications that currently pretty much limit you to 1080p 24Hz 3D mode and that is good for movies, but for games you would need to play in the 720p 50/60Hz 3D mode. On passive 3D HDTVs however you are able to bypass the HDMI 1.4 frame packaging if your middle-ware software for providing stereo 3D output supports Row Interleaved output and thus get 1080p 60Hz with half vertical resolution in stereo 3D mode. And there are actually quite a lot of people that prefer to get passive 3D for gaming due to this limitation of the HDMI 1.4 interface specifics than to go for an active solution and be limited in playing at 720p resolution. This of course is true if you are going for a 3D HDTV with the main purpose to use it for gaming in stereo 3D mode, but most people still by 3D-capable television sets for watching TV or Movies on them, not to play games in 3D. And while the same thing about the resolution of the passive 3D technology applies to 3D monitors, the active 3D monitors on the other hand support full 1080p resolution with wither 120Hz refresh rate in 2D mode or with up to 60Hz in 3D mode per eye (if the monitor is equipped with DL-DVI or DisplayPort interface). So for stereoscopic 3D gamers active 3D monitors are still the proffered solution and more and more traditional gamers are also switching to these 3D-capable active monitors in order to be able to use them to play games in 2D mode with the 120Hz refresh rate.

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Make Your Passive 3D Monitor or 3D HDTV Work with 3D Vision

February 11th, 2012 · 184 Comments · GeForce 3D Vision


Not that long ago Nvidia has introduced their “Optimized for Geforce” program that allows some certified passive 3D monitors such as Acer HR274H and Acer GR235HA to work with the 3D Vision video drivers, allowing you to use the full 3D Vision functionality with a passive 3D display. Prior to that in the old stereoscopic 3D drivers Nvidia had support for passive 3D monitors from Zalman, and although the newer Zaman 3D monitors were bundled with the iZ3D driver and not anymore with 3D Vision, they actually do work with 3D Vision and get optimized for the Optimized for GeForce functionality. If you have a passive 3D LCD monitor or even a passive 3D HDTV that is not supported by 3D Vision (Optimized for GeForce) you can actually quite easily make it work by installing a monitor driver with EDID override that will tell Windows and the video drivers that you actually have a different compatible display.



Here is an example using LG’s D2343P passive 3D monitor with installed Zalman ZM-M240W 3D Monitor EDID Override and the LG gets recognized as a Zalman 3D monitor. You need to install the INF driver from the link over the monitor driver you currently have installed from the Windows Device Manager, using the Have Disk option and if when get a warning message just confirm that you want the driver installed anyway. After that you may have to restart Windows in order for things to start working and the Nvidia video drivers to be able to properly recognize and activate the 3D support.



Opening the Nvidia Control Panel and going to the Stereoscopic 3D settings page you should see the “Optimized for GeForce” logo if everything is working properly and clicking the Test Stereoscopic 3D button should bring the Nvidia 3D test on the screen that should be working just fine when you put on the passive 3D glasses that came with the monitor. After that you can the 3D Vision Photo and Video Player and even play games in stereo 3D mode just like you would with an active 3D display and with the 3D Vision glasses. Of course using passive 3D would mean that you would have some limitations like the half vertical resolution when in 3D mode, the lower vertical viewing angle etc., but still you will be able to use passive 3D displays with your Nvidia graphics card and with all the features that 3D Vision offers, an not only with the iZ3D or the DDD TriDef 3D drivers, so you will simply have one more alternative available. I’ve tested this method and it works just fine even with the latest 295.51 beta video drivers from Nvidia, so you should have no trouble making it work. If you try this on your passive 3D setup, feel free to share your feedback and how it works with your specific 3D hardware, thanks to Butmuncher for finding out about this method.

Update: Since the Zalman EDID override does not support audio for HDMI connection to the monitor, you should use this driver only for DVI connection to the passive 3D display. If you wan to use HDMI connection and have audio over the interface as well, then you should install the Acer EDID override driver. Both INF files are included in the archive below, and special thanks to Greg Gilbert for providing the dump from the Acer HR274H display.

Here you can download the EDID override INF files that you would need for this to work…

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